Alert archive / Oregon / Freeze Warnings in 2021
Freeze Warning 9, NWS Medford, OR
NWS Medford, OR issued this freeze warning at Jun 6, 2021, 1:13 PM PDT for Klamath County, Lake County, Oregon; Modoc County, Siskiyou County, California. It took effect at Jun 7, 2021, 3:00 AM PDT. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 6, 2021, 1:13 PM PDT (20:13 UTC)
- In effect from
- Jun 7, 2021, 3:00 AM PDT
- Expired
- Jun 7, 2021, 8:00 AM PDT
- In force
- 5 hr
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Siskiyou County, CA, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 115 km from the middle of the area, began a volume at 20:10 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 8.2 hours before the alert went out and 123 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1016 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
786 WWUS76 KMFR 062013 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 113 PM PDT Sun Jun 6 2021 CAZ084-ORZ029>031-071500- /O.UPG.KMFR.FZ.A.0005.210607T1000Z-210607T1500Z/ /O.NEW.KMFR.FZ.W.0009.210607T1000Z-210607T1500Z/ Northeast Siskiyou and Northwest Modoc Counties-Klamath Basin- Northern and Eastern Klamath County and Western Lake County- Central and Eastern Lake County- Including the cities of Newell, Tulelake, Beatty, Bly, and Sprague River 113 PM PDT Sun Jun 6 2021 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 8 AM PDT MONDAY... * WHAT...Low temperatures of 27 to 32 degrees expected. * WHERE...In California, Northeast Siskiyou and Northwest Modoc Counties, including the cities of Tulelake and Newell. In Oregon, Klamath Basin, Northern and Eastern Klamath County and Western Lake County and Central and Eastern Lake County, including outlying areas of Klamath Falls and Lakeview, and also the cities of Sprague River, Beatty, Bly, Bonanza, Merrill and Malin. * WHEN...From 3 AM to 8 AM PDT Monday. * IMPACTS...Freezing conditions could kill crops and other sensitive vegetation. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Visit us at https://www.weather.gov/Medford
1 follow-up statement
139 WWUS76 KMFR 071455 NPWMFR URGENT - WEATHER MESSAGE National Weather Service Medford OR 755 AM PDT Mon Jun 7 2021 CAZ084-ORZ029>031-071600- /O.EXP.KMFR.FZ.W.0009.000000T0000Z-210607T1500Z/ Northeast Siskiyou and Northwest Modoc Counties-Klamath Basin- Northern and Eastern Klamath County and Western Lake County- Central and Eastern Lake County- Including the cities of Newell, Tulelake, Beatty, Bly, and Sprague River 755 AM PDT Mon Jun 7 2021 ...FREEZE WARNING WILL EXPIRE AT 8 AM PDT THIS MORNING... Temperatures are quickly rising across the area this morning. $$ Visit us at https://www.weather.gov/Medford
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 5:51 PM PDT | Dust Storm Advisory | MFR | Lake | 84 min |
| Jun 6, 1:30 PM PDT | Red Flag Warning | MFR | Harney, Lake | 31 hr |
Nearby
Freeze Warnings in Oregon, 2021Freeze Warnings in California, 2021Every freeze warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.